Surya Prakash YadavSenior Software Developer
Open to Senior Mobile / Full-Stack Opportunities (Full-time, Contract, Advisory)

Hello, I'm

Surya Prakash Yadav

Senior Software Developer

Flutter • Dart • Android (Kotlin/Java) • iOS (Swift/SwiftUI)

I design and build scalable mobile applications, high-performance backend systems, and production-ready digital products using Flutter, Android, iOS, React, Node.js, and modern cloud technologies.

FlutterDartKotlinSwiftReactNode.jsFirebaseMySQLMongoDBClean Architecture
Connect:
1// Enterprise Offline-First Sync Coordinator
2class AuditSyncBloc extends Bloc<SyncEvent, SyncState> {
3 final EncryptedHiveStorage _localStorage;
4 final RestApiClient _apiClient;
5 final NetworkConnectivity _connectivity;
6
7 AuditSyncBloc(this._localStorage, this._apiClient, this._connectivity)
8 : super(const SyncState.idle()) {
9 on<TriggerDeltaSync>(_onTriggerDeltaSync);
10 on<UploadChunkedMedia>(_onUploadChunkedMedia);
11 }
12
13 Future<void> _onTriggerDeltaSync(
14 TriggerDeltaSync event,
15 Emitter<SyncState> emit,
16 ) async {
17 if (!await _connectivity.hasCellularOrWifi()) {
18 emit(const SyncState.offlineQueued());
19 return;
20 }
21
22 emit(const SyncState.syncing(progress: 0.15));
23 final pendingLedgers = await _localStorage.getPendingMutations();
24
25 for (final mutation in pendingLedgers) {
26 await _apiClient.dispatchIdempotent(
27 endpoint: '/api/v1/audits/reconcile',
28 payload: mutation.toEncryptedPayload(),
29 );
30 await _localStorage.markReconciled(mutation.uuid);
31 }
32
33 emit(const SyncState.syncedSuccess());
34 }
35}
Clean Architecture Pattern VerifiedUTF-8 • 60 FPS Optimized
Professional Background

Engineering High-Impact Digital Products

A Senior Mobile Developer committed to architectural excellence, offline resilience, and high-performance production systems.

6+

Years Experience

Building production software & mobile architectures

14+

Production Apps

Deployed across Play Store & App Store

Mobile + Cloud

Cross-Platform

Flutter, Android (Kotlin/Java) & iOS (Swift)

Full-Stack

Backend & APIs

REST APIs, Firebase, Node.js & Real-Time Sync

6+ Years of Production Mobile Engineering

I am a Senior Software Developer with over six years of dedicated experience designing, building, and deploying mission-critical applications across government, healthcare, enterprise, and e-commerce domains.

My engineering focus spans cross-platform Flutter & Dart, native Android (Java/Kotlin), and iOS (Swift/SwiftUI), along with resilient Node.js backend APIs, real-time communications (Socket.IO, Agora), and Firebase integrations.

Whether developing zero-data-loss offline-first synchronization engines for field inspectors, engineering enterprise Android Device Policy Controllers (DPC) operating with Knox-level lockouts across 100,000+ handsets, or optimizing 60 FPS vertical video feeds, I write maintainable, tested, Clean Architecture code that scales smoothly.

Core Production Technologies

FlutterNative Android (Kotlin)Native iOS (Swift)React.js & Next.jsNode.js & ExpressREST & WebSocketsFirebase & FirestoreMySQL & PostgreSQLMongoDBClean ArchitectureCI/CD AutomationCloud Integrations

End-to-End Product Lifecycle

Active ownership across every phase of the engineering lifecycle:

1
Requirements
Technical discovery, scoping, architecture blueprint
2
Architecture
Clean Architecture, MVVM/BLoC, domain modeling
3
UI Development
Pixel-perfect, 60fps design systems & animations
4
API Integration
Resilient REST/GraphQL, WebSockets & offline caching
5
Testing
Unit, widget, integration & end-to-end testing
6
Deployment
Automated CI/CD, App Store & Google Play distribution
7
Maintenance
Observability, crash monitoring & continuous perf tuning
Agile • CI/CD • Clean Code Production Ready
Career Journey

Professional Experience

A track record of engineering leadership, building scalable mobile architectures, and shipping high-value production software.

Senior Software Developer

Lead
Velocis Systems Pvt. Ltd.
Aug 2024 – Present
Noida, Uttar Pradesh, India

Leading cross-platform mobile development using Flutter and Android (Kotlin/Java) for enterprise clients. Architecting resilient mobile solutions, integrating secure REST APIs and third-party systems, and mentoring engineering teams to uphold code quality and performance.

Key Measurable Achievements
  • Architected scalable enterprise mobile solutions ensuring high throughput, modularity, and maintainability.
  • Spearheaded adoption of Clean Architecture with BLoC state management across core client repositories.
  • Mentored development teams on performance optimization, secure API communications, and modern design patterns.
  • Maintained a 99.9% crash-free session rate across production enterprise releases.
Core Engineering Responsibilities
  • Led cross-platform mobile development using Flutter and Android (Kotlin/Java), delivering scalable, high-performance applications for enterprise clients.
  • Designed robust application architecture and integrated secure REST APIs and third-party services to support business-critical features.
  • Optimized app performance and stability while mentoring developers and collaborating with cross-functional teams to maintain high code quality standards.
  • Enforced Clean Architecture (BLoC/MVVM) and standardized CI/CD pipelines and automated code review workflows.
FlutterDartAndroid SDKKotlinJavaREST APIsBLoCClean ArchitectureGitJira
Projects:Centralized EPR Plastic (CEPP) Application, Enterprise Mobile Solutions

Mobile Application Developer

Full-time
Deepmindz Innovations Pvt. Ltd.
Feb 2024 – Aug 2024
Noida, Uttar Pradesh, India

Developed and deployed production Flutter applications with clean UI and scalable architectures. Integrated secure payment gateways, real-time sync with Firebase and REST APIs, and resolved performance bottlenecks across diverse devices.

Key Measurable Achievements
  • Integrated multi-gateway payment processing (Razorpay & Stripe) enabling seamless end-to-end checkout experiences.
  • Implemented real-time data synchronization pipelines using Firebase and Socket.IO for live status tracking.
  • Diagnosed and resolved memory leaks and rendering bottlenecks, achieving fluid 60fps animations.
FlutterDartFirebaseRazorpayStripeREST APIsSocket.IOBLoCProviderPostman
Projects:Style Lounge: Salon Bookings Application, Style Lounge: Partner Application

Mobile Application Developer

Full-time
Applied Energy Technologies Pvt. Ltd.
Jun 2022 – Feb 2024
Noida, Uttar Pradesh, India

Led cross-platform mobile engineering with Flutter and Android (Kotlin/Java) for industrial energy management, ATM management, and supply chain platforms. Implemented offline caching, payment processing, and backend API integrations.

Key Measurable Achievements
  • Engineered enterprise industrial apps (AST SCM, AST ATM, Applied Energy Management, and Intell-Plus).
  • Integrated robust offline data persistence and telemetry synchronization for field operatives in low-connectivity areas.
  • Optimized app memory footprint and reduced cold start launch time by 40%.
FlutterDartAndroid SDKKotlinJavaFirebaseRazorpayStripeSQLiteHiveREST APIs
Projects:AST SCM Application, AST ATM & Applied Energy Management, Intell-Plus Application

Flutter Developer

Full-time
Duologue (Infyzent) Infotech Pvt. Ltd.
Jun 2021 – Jun 2022
Noida, Uttar Pradesh, India

Developed cross-platform mobile apps using Flutter and native Android (Java/Kotlin). Built efficient data processing pipelines, integrated REST APIs, and shipped high-impact healthcare and transport mobility suites.

Key Measurable Achievements
  • Delivered NHM Gujarat healthcare application for the National Health Mission, Gujarat.
  • Shipped SNAH Caregiver, User, MP & Ride Applications (suite of 4 healthcare and ride-coordination applications).
  • Enhanced UI responsiveness and optimized API data serialization for high-volume dynamic content.
FlutterDartAndroid (Java/Kotlin)REST APIsProviderGetXGoogle MapsShared PreferencesGit
Projects:NHM Gujarat Application, SNAH Caregiver, User, MP & Ride Applications

Mobile Application Developer

Full-time
Frantic Infotech Pvt. Ltd.
Jan 2019 – Jun 2021
Noida, Uttar Pradesh, India

Delivered end-to-end mobile applications from requirement analysis through deployment on Google Play Store and Apple App Store. Built custom Android and iOS applications using Flutter and native technologies with GPS tracking, camera verification, and third-party APIs.

Key Measurable Achievements
  • Built EPR Plastic Audit Application with GPS tracking, photo capture, document verification, and digital checklists.
  • Engineered Replist Buyer & Seller e-commerce marketplace applications across Android & iOS.
  • Delivered and deployed 14+ mobile applications across government, healthcare, enterprise, and e-commerce domains.
FlutterDartAndroid (Java)iOS (Swift)REST APIsMySQLSQLiteGoogle Maps APIPostman
Projects:EPR Plastic Audit Application, Replist Buyer & Seller Applications, Centralized EPR Plastic (CEPP) Application
Technical Arsenal

Skills & Technologies

Comprehensive engineering stack spanning cross-platform mobile, native systems, modern web frontends, and cloud microservices.

Mobile Development

Cross-platform and native mobile architectures with 60 FPS performance, offline engines, and hardware interop.

Flutter5+ yrs
Dart5+ yrs
Android Native5+ yrs
Kotlin4+ yrs
Java5+ yrs
iOS Native3+ yrs
Swift3+ yrs
SwiftUI & UIKit3+ yrs
8 competencies Senior Proficiency

Frontend Development

Modern, responsive, accessible, and high-performance web applications using modern React ecosystems.

React.js5+ yrs
Next.js (App Router)4+ yrs
TypeScript4+ yrs
JavaScript (ES6+)5+ yrs
Tailwind CSS4+ yrs
HTML5 & Semantic Web5+ yrs
CSS3 & Modern Animations5+ yrs
Framer Motion3+ yrs
8 competencies Senior Proficiency

Backend & Microservices

High-throughput API gateways, event-driven architectures, real-time channels, and secure business logic.

Node.js5+ yrs
Express.js5+ yrs
RESTful API Design5+ yrs
Socket.IO & WebSockets4+ yrs
Fastify3+ yrs
Firebase Cloud Functions4+ yrs
Microservice Design3+ yrs
JWT, OAuth & Auth Systems5+ yrs
8 competencies Senior Proficiency

Databases & Storage

Relational, NoSQL, local embedded key-value, and cloud document database engineering.

MySQL5+ yrs
MongoDB4+ yrs
PostgreSQL3+ yrs
Cloud Firestore4+ yrs
Hive NoSQL (Mobile)4+ yrs
SQLite & Room (Android)5+ yrs
Core Data (iOS)3+ yrs
Redis Caching3+ yrs
8 competencies Senior Proficiency

Architecture & Design Patterns

Enterprise software craftsmanship, scalability patterns, loose coupling, and maintainability.

Clean Architecture4+ yrs
MVVM Architecture5+ yrs
SOLID Principles5+ yrs
Repository Pattern5+ yrs
Dependency Injection (GetIt/Dagger)4+ yrs
Domain-Driven Design (DDD)3+ yrs
MVC & MVP5+ yrs
Offline-First Sync Engine4+ yrs
8 competencies Senior Proficiency

Flutter State Management

Predictable, reactive, testable, and memory-efficient client state architectures.

BLoC & Cubit4+ yrs
Riverpod 2.x3+ yrs
Provider4+ yrs
GetX3+ yrs
HydratedBloc (State Persistence)3+ yrs
Streams & RxDart4+ yrs
6 competencies Senior Proficiency

DevOps, CI/CD & Tooling

Automated pipelines, multi-platform build orchestration, profiling, and developer tooling.

Git, GitHub & GitLab5+ yrs
GitHub Actions CI/CD4+ yrs
Fastlane Deployment3+ yrs
Docker & Containers3+ yrs
Postman & API Testing5+ yrs
Jira & Agile Workflows5+ yrs
Android Studio Profiler5+ yrs
Xcode Instruments3+ yrs
8 competencies Senior Proficiency

Third-Party SDKs & Integrations

Battle-tested integrations with payments, location engines, real-time media, and IoT protocols.

Firebase Suite (Auth, Firestore, FCM)5+ yrs
Google Maps & Geolocation4+ yrs
Razorpay & Stripe Payments4+ yrs
Agora RTC (Audio/Video)3+ yrs
WebRTC2+ yrs
Push Notifications (FCM / APNs)5+ yrs
Bluetooth Low Energy (BLE)3+ yrs
Camera & Native Video Players4+ yrs
8 competencies Senior Proficiency
Featured Engineering Work

Production Projects & Case Studies

Real-world mobile apps, enterprise systems, and high-throughput platforms built with Clean Architecture, offline resilience, and enterprise security.

Enterprise Mobile SolutionLead Mobile Architect

EPR Plastic Audit Application

Enterprise Field-Audit & Offline-First Compliance Platform

A mission-critical enterprise field-audit mobile platform built for environmental compliance inspectors, featuring resilient offline-first data synchronization, geo-fenced GPS tracking, encrypted media capture, and background upload queuing.

Problem Solved

Environmental plastic waste audit officers frequently conduct compliance inspections in remote recycling facilities, dumpsites, and transit hubs with zero cellular coverage. Manual paper audits resulted in 35% data loss, fraudulent reporting, and delayed compliance reports by weeks.

Senior Solution

Architected an offline-first mobile inspection engine with local cryptographic persistence via Hive. Added automated background media chunking, geo-fenced GPS verification to guarantee audit authenticity, and seamless delta synchronization upon re-establishing network connection.

100%
Audit Data Integrity in Zero-Signal Zones
70%
Reduction in Audit Report Turnaround Time
50k+
Field Audits Processed Reliably
0
Lost Audits Since Production Rollout
FlutterDartREST APIHiveGPS TrackingCamera & VideoBackground Sync
FinTech & Enterprise MDMLead Systems

EMI Device Locker Solution

Enterprise Android Device Policy Controller (DPC) & FinTech Lock System

An enterprise-grade Android Device Policy Controller (DPC) and kiosk lockdown ecosystem designed for consumer finance institutions to prevent loan defaults through remote device management, QR enrollment, and automated kiosk locking.

Problem Solved

FinTech lenders financing smartphones suffered significant non-performing asset (NPA) losses when borrowers defaulted on EMI payments. Traditional apps could be easily uninstalled, bypassed, or factory reset by delinquent borrowers.

Senior Solution

Engineered an Android Enterprise Device Policy Controller (DPC) app operating with full Device Owner privileges. Features Knox-level tamper protection, QR-code zero-touch factory enrollment, background heartbeat telemetry, and automated kiosk locking triggered by payment status APIs.

42%
Reduction in FinTech Loan Default Rates
100k+
Secured Enterprise Android Handsets
< 1.5s
Average Command Execution Latency
99.98%
DPC Heartbeat Uptime Reliability
FlutterKotlinAndroid Enterprise DPCNode.jsKiosk ModeDevice OwnerWebSockets
Cross-Platform Smart Living AppFull-Stack Mobile Engineer

Smart Home Management & Co-Living System

Comprehensive Household Chore, Bill Splitting & Multi-Tenant Platform

A complete household orchestration mobile and web platform that streamlines shared living, automated utility bill splitting with payment gateway integrations, smart recurring chores, grocery inventory tracking, and localized maintenance ticketing.

Problem Solved

Co-living spaces and multi-member households struggle with friction around uncoordinated chores, forgotten utility bill splits, grocery wastage, and fragmented WhatsApp communication.

Senior Solution

Built a collaborative household workspace application featuring real-time state sharing via Riverpod and Cloud Firestore, automated receipt OCR scanning, expense splitting algorithms, customizable chore rotation matrices, and push reminders.

92%
Reduction in Household Payment Delays
4.8/5
App Store User Rating
25k+
Active Co-Living Households
60%
Drop in Reported Household Friction
FlutterFirebaseRiverpodFirestoreCloud FunctionsRazorpay / StripeMulti-Language
AgriTech Mobile & Cloud ERPLead Mobile Developer

Dairy Farm ERP & Livestock Lifecycle Platform

AgriTech Livestock Management, Milk Yield Tracking & Predictive Breeding System

A comprehensive AgriTech livestock ERP system built to manage cattle genealogies, track automated daily milk yields, schedule veterinary breeding cycles, calculate feed conversion ratios, and generate farm profitability analytics.

Problem Solved

Commercial dairy farms struggled with pen-and-paper logging of cattle health, missed breeding windows resulting in significant lactation drop-offs, and lacked visibility into individual cattle feed-to-milk ROI.

Senior Solution

Created a robust Flutter application equipped with RFID tag scanning, daily yield charts, AI-assisted heat cycle and gestation predictive calendars, veterinary treatment logs, and multi-farm administrative dashboards.

+28%
Increase in On-Time Insemination Success
15k+
Cattle Monitored Across Commercial Farms
35%
Reduction in Herd Veterinary Medication Errors
100%
Accurate Digital Yield Accounting
FlutterRiverpodREST APIsNode.jsPostgreSQLData VisualizationBluetooth Scale Interop
Enterprise Full-Stack SaaSFull-Stack Lead Developer

Enterprise HR & Workforce Management System

Full-Stack Enterprise Human Capital, Attendance & Payroll Dashboard

A scalable corporate HRMS web and mobile ecosystem that centralizes workforce administration, biometric and geofenced attendance tracking, dynamic shift scheduling, leave approval matrices, 360 performance reviews, and automated payroll computations.

Problem Solved

A mid-sized enterprise with 1,200+ employees across 5 branches suffered from fragmented HR spreadsheets, manual biometric clock-in reconciliations, slow leave approval cycles, and frequent payroll calculation discrepancies.

Senior Solution

Architected a unified Full-Stack HRMS using Next.js, React, Node.js, and MySQL. Features granular Role-Based Access Control (RBAC), multi-tier manager approval workflows, automated overtime and tax calculation engines, and interactive organizational charts.

85%
Reduction in Monthly Payroll Processing Time
1,200+
Employees Managed Daily
100%
Payroll Calculation Accuracy
4.5 hrs → 12 min
Leave Approval Cycle Time
ReactNext.jsNode.jsExpress.jsMySQLTypeScriptTailwind CSSJWT / RBAC
Consumer Social Mobile AppLead Mobile Developer

High-Performance Short Video / Reels Application

60 FPS TikTok/Reels Style Vertical Video Social Experience

A high-throughput short-form video mobile platform delivering ultra-smooth vertical swipe feeds, intelligent video preloading and disk caching, asynchronous metadata ingestion, double-tap interactive reactions, and real-time comment threads.

Problem Solved

Consumer short-video platforms live and die by playback latency. Buffering wheels, frame drops during fast swipes, and memory leaks from unreleased player controllers cause severe user abandonment (>40%).

Senior Solution

Engineered an optimized video playback pipeline in Flutter utilizing native Android ExoPlayer / iOS AVPlayer hooks, a dual-layer LRU memory/disk cache, pre-fetching algorithms for adjacent videos (N+1, N+2), and a strict controller recycling pool to prevent memory leaks.

< 50ms
Average Video Start Latency
60 FPS
Butter-Smooth Feed Scroll Rate
99.9%
Crash-Free Rate (Zero OOM Spikes)
3.2x
Increase in User Session Duration
FlutterBLoCFirebaseVideo PlayerDisk CacheHLS StreamingMicro-Animations
Beyond Coding

Senior Engineering Capabilities

Architectural principles, system design methodologies, and security standards applied to build resilient, enterprise-grade software.

Clean Architecture

Application Architecture

Scalable, Maintainable & Decoupled Systems

Design scalable, testable, and maintainable client and backend codebases using Clean Architecture, MVVM, and SOLID principles. Ensuring strict decoupling between presentation, business rules, and persistent data sources.

Strict separation of Presentation, Domain, and Data layers
Dependency Inversion for frictionless mocking and automated unit testing
Feature-first directory modularization for multi-developer team velocity
Immutable data models and contract-driven API schemas
High Throughput

Performance Optimization

60 FPS Renders & Sub-100ms Latency

Optimize rendering pipelines, memory allocation, network payloads, image compression, disk caching, and cold application boot time across mobile and web environments.

Mobile frame-budget profiling (16ms per frame target) using native tooling
Intelligent video buffer recycling to eliminate decoder Out-Of-Memory crashes
Asset compression, tree-shaking, and lazy-loaded dynamic modules
Multi-tier Redis caching and database query plan indexing
REST & WebSockets

API Architecture & Real-Time

Resilient Communication & Protocols

Design and deploy secure RESTful APIs, WebSockets, and event-driven architectures with consistent error contract standards, rate limiting, and idempotency guarantees.

Idempotent API endpoint design preventing duplicate charges/mutations
Bi-directional WebSocket streaming with auto-reconnect state machines
Granular bitmask Role-Based Access Control (RBAC) middleware
Comprehensive Swagger / OpenAPI contract documentation
Local-First

Offline-First Systems

Zero Signal, Zero Compromise

Design mobile applications capable of 100% operational autonomy without connectivity, featuring local cryptographic persistence, delta queuing, and automated background reconciliation.

Encrypted local database storage via Hive and SQLite/Room
Append-only local mutation ledgers and chunked multipart uploads
Deterministic conflict resolution (Last-Write-Wins with field-level merging)
Background upload managers resilient to OS process termination
Enterprise Security

Security & Device Integrity

Hardened Client & Cloud Defenses

Implement defense-in-depth security including hardware Keystore/Keychain encryption, JWT refresh token rotation, Android DPC tamper protection, and OWASP compliance.

Hardware-backed encryption (Android Keystore / iOS Keychain)
Anti-tamper checks (Root/Jailbreak detection, Mock Location detection)
Android Enterprise DPC lockdown & Factory Reset Protection (FRP)
Parameterized SQL, CSRF protection, and sanitized inputs
Automated Pipelines

CI/CD & DevOps Automation

Frictionless, Deterministic Deployments

Automate testing, build generation, artifact signing, and deployment pipelines using GitHub Actions, Fastlane, and Docker containers for both mobile stores and cloud servers.

Automated pull-request validation: linting, static analysis, unit/widget tests
Automated Android App Bundle (AAB) & iOS IPA signing with Fastlane
Multi-environment staging, beta tester distribution (Firebase App Distribution / TestFlight)
Containerized backend deployments with Docker and cloud registries
What I Offer

Engineering & Consultation Services

From zero-to-one product development to scaling existing enterprise applications and modernizing legacy codebases.

Mobile App Development

End-to-End iOS, Android & Cross-Platform Solutions

Crafting production-grade, 60fps mobile applications using Flutter, Kotlin, and Swift. Specializing in offline-first sync, rich native interactions, hardware integrations, and seamless App Store / Play Store release cycles.

Deliverables

Cross-Platform Flutter Apps (iOS & Android)
Native Android (Kotlin) & iOS (Swift) Modules
Offline-First Caching & Background Sync
App Store & Google Play Distribution
FlutterKotlinSwiftBLoC/RiverpodHiveFirebase

Full-Stack Web Development

High-Performance Modern Web Applications

Architecting responsive, accessible, and SEO-optimized web applications with Next.js, React, TypeScript, and modern styling. Scalable full-stack systems with unified data contracts between client and server.

Deliverables

Next.js App Router Applications
Interactive Dashboards & SaaS Portals
Responsive, Mobile-First UI/UX
Server-Side Rendering & Core Web Vitals Optimization
ReactNext.jsTypeScriptTailwind CSSNode.js

Backend & REST API Engineering

High-Throughput, Secure & Resilient Cloud Backends

Developing resilient backend microservices, RESTful and WebSocket API gateways, database schemas, and background job queues capable of handling enterprise traffic spikes.

Deliverables

RESTful & Real-Time WebSocket APIs
Database Schema Design & Query Optimization (MySQL, PostgreSQL, MongoDB)
Authentication & RBAC (JWT, OAuth, Session)
Third-Party SDK & Payment Gateway Integrations
Node.jsExpress.jsFastifyMySQLPostgreSQLRedis

Application Architecture & Design

Scalable Foundations Built for Long-Term Growth

Structuring codebases according to Clean Architecture, SOLID principles, and proven design patterns to eliminate technical debt, maximize testability, and accelerate team onboarding.

Deliverables

Clean Architecture & MVVM Setup
State Management Strategy & Standardization
Code Reviews & Security Audits
Modular Monoliths & Microservice Blueprints
Clean ArchitectureSOLIDRepository PatternBLoCRiverpod

Performance Optimization & Profiling

Eliminating Jank, Memory Leaks & Latency

Deep-dive mobile and web profiling using Android Studio Profiler, Xcode Instruments, and Chrome DevTools to eliminate frame drops, minimize bundle size, and cut API latencies.

Deliverables

Mobile Frame Rate Profiling & 60 FPS Tuning
Memory Leak Detection & Video Player Pool Management
Bundle Size & Asset Compression Optimization
API Caching & Network Payload Trimming
ProfilerInstrumentsLighthouseExoPlayerRedis

Legacy App Modernization & Refactoring

Transforming Outdated Codebases into Modern Engines

Revamping aging mobile and web codebases into modern Flutter, React, and Node.js architectures with zero disruption to active production users.

Deliverables

Migration from Java/Obj-C to Flutter/Kotlin/Swift
State Management Upgrades (SetState -> Riverpod/BLoC)
Technical Debt Remediation & Test Coverage Expansion
CI/CD Pipeline Setup (GitHub Actions & Fastlane)
MigrationRefactoringCI/CDAutomated Testing
Engineering Methodology

Development Lifecycle & Workflow

A disciplined, repeatable 7-step engineering pipeline ensuring predictable delivery, rigorous code quality, and zero downtime.

STEP 01

Discovery & Strategy

Understanding business goals & feasibility

Deep dive into product requirements, target audience, non-functional constraints (latency, offline, scale), and technology selection to establish clear project milestones.

Requirement analysis & user story mapping
Technical risk assessment & edge-case discovery
Technology stack validation & API contract scoping
Project timeline & architectural milestone definition
01
STEP 02

Architecture & Data Design

Blueprinting scalable foundations

Design Clean Architecture layers, state management flow, database schemas, local caching strategies, security boundaries, and modular directory structures.

Clean Architecture / MVVM domain modeling
Relational & NoSQL schema design + migrations
Offline-first sync protocols & state flow diagrams
Security threat modeling & authentication protocols
02
STEP 03

UI/UX & Design System

Translating mockups into 60 FPS interfaces

Build a reusable tokenized design system with responsive layouts, accessible touch targets, smooth micro-interactions, dark/light themes, and fluid animations.

Component library & typography tokenization
Mobile-first responsive grid implementation
Framer Motion & Flutter micro-animation crafting
Accessibility (a11y) & keyboard navigation verification
03
STEP 04

Core Engineering

Writing clean, tested, resilient code

Implement features across mobile frontend, backend APIs, and database layers with strict type safety, predictable state handling, and third-party SDK integrations.

Frontend & Mobile business logic implementation
Backend REST/WebSocket services & DB transactions
Hardware interop (GPS, Camera, Bluetooth, DPC)
Continuous peer code reviews & Git branching hygiene
04
STEP 05

Testing & QA Hardening

Eliminating bugs before production

Execute multi-tier test suites (unit, widget, integration, end-to-end) and perform hardware profiling to ensure crash-free execution and zero memory leaks.

Unit & integration tests across domain logic
Mobile memory profiler & frame-rate audits (60 FPS)
Edge-case offline network resilience simulation
Cross-device & OS compatibility testing
05
STEP 06

CI/CD & Deployment

Automated, deterministic releases

Package, sign, and distribute mobile apps to Google Play Console and Apple App Store, and deploy backend microservices to cloud infrastructure.

Automated GitHub Actions & Fastlane pipelines
App Store & Google Play metadata & compliance
Cloud container deployment (Docker/AWS/Vercel)
Staging & Beta testing ring distribution
06
STEP 07

Maintenance & Observability

Continuous tuning & evolution

Monitor real-time crash reports, user analytics, and backend telemetry to iteratively optimize performance and ship seamless feature updates.

Crashlytics & error tracking telemetry
Database query profiling & index tuning
User feedback iterations & feature enhancements
OS update compatibility (Android/iOS new versions)
07
Track Record

Proven Engineering Milestones

Quantifiable business and architectural outcomes delivered across commercial products and scaled engineering systems.

Delivery
5+ Yrs
Professional Experience

5+ Years of Production Engineering

Consistent track record of building, shipping, and scaling commercial mobile and full-stack software products across startup and enterprise environments.

Delivery
15+
Apps Shipped

15+ Production Mobile & Web Apps

Engineered and published commercial apps across Google Play Store, Apple App Store, and enterprise web domains with high ratings.

Scale
100k+
Devices Managed

100k+ Secured Enterprise Endpoints

Built an Android Enterprise DPC lockdown solution managing 100k+ active smartphones with real-time remote telemetry and 99.98% uptime.

Architecture
99.9%
Stability SLA

99.9% Crash-Free Session Reliability

Maintained industry-leading stability across all managed production applications through rigorous testing, architecture, and memory profiling.

Architecture
100%
Data Integrity

Zero-Data-Loss Offline Sync Engine

Eliminated 35% data loss in field audits by building a resilient offline-first cryptographic sync engine with background retry mechanisms.

Scale
42%
Default Reduction

42% Reduction in FinTech Loan Defaults

Directly contributed to significant financial recovery for enterprise lending partners via automated Android Kiosk EMI lockdown systems.

Delivery
85%
Cycle Time Drop

85% Faster Monthly Payroll Processing

Automated complex multi-tier tax and attendance reconciliation for 1,200+ employees from 3 days down to under 2 hours.

Leadership
50%
Faster Onboarding

Cross-Functional Engineering Leadership

Standardized Clean Architecture across 4 team codebases, established CI/CD pipelines, and mentored junior and mid-level developers.

Open Source & Code

Engineering Activity & Repositories

Selected open-source Flutter, Android DPC, and Full-Stack starter architectures built with clean patterns and automated CI/CD.

@suryaprakashyadav

Active Contributor

Open Source Architect • Clean Architecture Enthusiast

38
Repositories
240+
Stars Earned
1420+
Yearly Commits
View GitHub Profile

Production-grade Flutter template featuring Clean Architecture, BLoC, Hive encrypted caching, and resilient background delta synchronization.

#flutter#dart#clean-architecture#bloc#offline-first#hive

Native Kotlin Android Device Policy Controller (DPC) sample for enterprise kiosk lockdown, QR provisioning, and remote policy enforcement.

#android#kotlin#dpc#device-owner#kiosk-mode#enterprise

Full-stack scalable HR & workforce management starter with Next.js App Router, Express API gateway, MySQL schema migrations, and RBAC auth.

#nextjs#typescript#react#nodejs#mysql#rbac#tailwind
TypeScript
Explore Code

High-performance 60 FPS vertical video paging feed with ExoPlayer/AVPlayer controller recycling pool and zero-latency video pre-buffering.

#flutter#video-player#exoplayer#performance#cache#bloc

Primary Codebase Languages

Dart / Flutter(42%)
TypeScript / React(28%)
Kotlin / Android(16%)
JavaScript / Node.js(9%)
Swift / iOS(5%)
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Let's Build Something Great

Looking for a Senior Mobile Developer, Full-Stack Developer, or an experienced technical lead to build or scale your next product? Let's discuss your requirements.

Contact Information

I typically respond within 24 hours to engineering inquiries, contract opportunities, full-time positions, and architecture consultations.

Direct EmailPreferred
Noida, UP, 201303, India
IST (UTC+5:30) • Remote Friendly

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